Lure camping is definitely super boring and while efficient just isn't fun unless you happen to be eating a meal there.You're 'supposed' to either wander around hunting them, or run a 60 minute or higher circuit.
However, the spawn time decreases to closer to 5 minutes if you lure a stop. Find 4 stops you can hit and you'll probably find other people who collectively lure it. Right now that's the best way to level in this game and it's a big problem, IMO, since it's super boring.
Similarly, taking down an established gym will net you some decent xp, but really isn't fun either.
After playing for almost two weeks now, my favorite part is the core gameplay of going to new places and seeing what Pokemon are there. I saturated on my neighborhood Pokemon fairly quickly.